WARNING! This drama can cause addiction, insomnia, cause great curiosity, heart palpitations. Because the drama is Extraordinary. The script seems to fit history and not misguided (sorry if I'm wrong). The addition of the fictional character is very good, the casts put out their best acting, the ending given really made the audience want to season 2, but I think this drama is made not for 2 season. So, enjoy every scene given by the director!!